<template>
  <div class="app-container">

    <!-- 查询 -->
    <el-form :model="queryParams" ref="queryForm" v-show="showSearch" :inline="true">
      <el-form-item label="角色名称" prop="roleName">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入角色名称"
          clearable
          size="small"
          style="width: 240px"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="状态" prop="status">
        <el-select
          v-model="queryParams.status"
          placeholder="角色状态"
          clearable
          size="small"
          style="width: 240px"
        >
          <el-option
            v-for="dict in statusOptions"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="创建时间">
        <el-date-picker
          v-model="queryParams.createTime"
          type="date"
          value-format="yyyy-MM-dd"
          size="small"
          style="width: 240px"
          placeholder="选择日期">
        </el-date-picker>
      </el-form-item>

      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:role:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:role:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:role:remove']"
        >删除</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>


    <!-- 列表 -->
    <el-table v-loading="loading" ref="multipleTable" :data="roleListData" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="角色名称" prop="name" :show-overflow-tooltip="true" width="150" />
      <el-table-column label="权限字符" prop="roleName" :show-overflow-tooltip="true" width="150" />

      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>

      <el-table-column label="状态" align="center" width="100">
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.status"
            inactive-value="2"
            active-value="1"
            @change="handleStatusChange(scope.row)"
          ></el-switch>
        </template>
      </el-table-column>

      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:role:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:role:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改角色配置对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="角色名称" prop="name">
          <el-input v-model="form.name" placeholder="请输入角色名称" />
        </el-form-item>
        <el-form-item label="权限字符" prop="roleName">
          <el-input v-model="form.roleName" placeholder="请输入权限字符" />
        </el-form-item>
        <el-form-item label="状态">
          <el-radio-group v-model="form.status">
            <el-radio
              v-for="dict in statusOptions"
              :key="dict.value"
              :label="dict.value"
            >{{dict.label}}</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="菜单权限">
          <el-checkbox v-model="menuExpand" @change="handleCheckedTreeExpand($event, 'menu')">展开/折叠</el-checkbox>
          <el-checkbox v-model="menuNodeAll" @change="handleCheckedTreeNodeAll($event, 'menu')">全选/全不选</el-checkbox>
          <el-checkbox v-model="menuCheckStrictly" disabled >父子联动</el-checkbox>
          <el-tree
            class="tree-border"
            :data="menuOptions"
            show-checkbox
            ref="menu"
            node-key="id"
            :check-strictly="menuTreeCheckStrictly"
            empty-text="加载中，请稍后"
            :props="defaultProps"
          ></el-tree>
        </el-form-item>
        <el-form-item label="备注">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入内容"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import { listRole, delRole, addRole, updateRole, changeRoleStatus } from "@/api/system/role";
  import { roleMenuTreeselect } from "@/api/system/menu";
  export default {
    name: "Role",
    data() {
      return {
        // 遮罩层
        loading: true,
        // 选中数组
        ids: [],
        // 非单个禁用
        single: true,
        // 非多个禁用
        multiple: true,
        // 显示搜索条件
        showSearch: true,
        // 总条数
        total: 0,
        // 角色表格数据
        roleListData: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        menuExpand: false,
        menuNodeAll: false,
        // 查询参数
        queryParams: {
          pageNum: 1,
          pageSize: 10,
          name: "",
          createTime: "",
          status: ""
        },
        // 搜索查询状态数据字典
        statusOptions: [
          {
            "label": "启用",
            "value": "1"
          },{
            "label": "禁用",
            "value": "2"
          }
        ],

        // 菜单列表
        menuOptions: [],
        //默认勾选父子联动且不能修改
        menuCheckStrictly: true,
        //默认父子联动
        menuTreeCheckStrictly: false,

        multipleTable:[],


        // 表单参数
        form: {},
        defaultProps: {
          children: "children",
          label: "label"
        },
        // 表单校验
        rules: {
          name: [
            { required: true, message: "角色名称不能为空", trigger: "blur" }
          ],
          roleName: [
            { required: true, message: "权限字符不能为空", trigger: "blur" }
          ]
        }
      };
    },
    created() {
      this.getList();
    },
    methods: {
      /** 查询角色列表 */
      getList() {
        this.loading = true;
        listRole(this.queryParams).then(
          response => {
            let data = response.data;
            let listRole = data.records;
            listRole.forEach(d=>{
              d.status = d.status + '';
            })
            this.roleListData = listRole;
            this.total = response.data.total;
            this.loading = false;
          }
        );
      },

      /** 搜索按钮操作 */
      handleQuery() {
        this.queryParams.pageNum = 1;
        if (this.queryParams.createTime == null){
          this.queryParams.createTime = "";
        }
        this.getList();
      },
      /** 重置按钮操作 */
      resetQuery() {
        this.resetForm("queryForm");
        this.queryParams.createTime = "";
        this.handleQuery();
      },

      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },

      // 表单重置
      reset() {
        if (this.$refs.menu != undefined) {
          this.$refs.menu.setCheckedKeys([]);
        }
        this.menuExpand = false,
          this.menuNodeAll = false,
          this.form = {
            id: undefined,
            name: undefined,
            roleName: undefined,
            status: "1",
            menuIds: [],
            menuCheckStrictly: true,
            remark: undefined
          };
        this.resetForm("form");
      },



      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset();
        const roleId = row.id || this.ids[0];
        this.open = true;
        //选择框修改
        if (typeof row.id === 'undefined'){
          for (let i = 0; i < this.multipleTable.length; i++) {
            const halo = this.multipleTable[i];
            if (halo.id === roleId){
              row = halo;
            }
          }
        }
        this.form = {
          "id": roleId,
          "name": row.name,
          "roleName": row.roleName,
          "status": row.status,
          "remark": row.remark
        }
        const roleMenu = this.getRoleMenuTreeselect(roleId);
        roleMenu.then(res => {
          let checkedKeys = res.data.checkedKeys
          checkedKeys.forEach((v) => {
            this.$nextTick(()=>{
              this.$refs.menu.setChecked(v, true ,false);
            })
          })
        })
        this.title = "修改角色";
      },

      /** 根据角色ID查询菜单树结构 */
      getRoleMenuTreeselect(roleId) {
        return roleMenuTreeselect({"roleId":roleId}).then(response => {
          this.menuOptions = response.data.menus;
          return response;
        });
      },
      // 所有菜单节点数据
      getMenuAllCheckedKeys() {
        // 目前被选中的菜单节点
        let checkedKeys = this.$refs.menu.getCheckedKeys();
        // 半选中的菜单节点
        let halfCheckedKeys = this.$refs.menu.getHalfCheckedKeys();
        checkedKeys.unshift.apply(checkedKeys, halfCheckedKeys);
        return checkedKeys;
      },


      // 角色状态修改
      handleStatusChange(row) {
        let text = row.status === "1" ? "启用" : "停用";
        this.$confirm('确认要"' + text + '"该角色吗?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return changeRoleStatus({"id":row.id, "status":row.status});
        }).then(() => {
          this.msgSuccess(text + "成功");
        }).catch(function() {
          row.status = row.status === "1" ? "2" : "1";
        });
      },

      // 多选框选中数据
      handleSelectionChange(selection) {
        this.ids = selection.map(item => item.id)
        this.single = selection.length!=1
        this.multiple = !selection.length
        this.multipleTable = selection;               //  this.multipleTable 选中的值
      },
      // 树权限（展开/折叠）
      handleCheckedTreeExpand(value, type) {
        if (type == 'menu') {
          let treeList = this.menuOptions;
          for (let i = 0; i < treeList.length; i++) {
            this.$refs.menu.store.nodesMap[treeList[i].id].expanded = value;
          }
        }
      },
      // 树权限（全选/全不选）
      handleCheckedTreeNodeAll(value, type) {
        if (type == 'menu') {
          this.$refs.menu.setCheckedNodes(value ? this.menuOptions: []);
        }
      },

      /** 新增按钮操作 */
      handleAdd() {
        this.reset();
        this.open = true;
        this.title = "添加角色";
        this.getRoleMenuTreeselect(0);
      },

      /** 提交按钮 */
      submitForm: function() {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.id != undefined) {
              this.form.menuIds = this.getMenuAllCheckedKeys();
              updateRole(this.form).then(response => {
                this.msgSuccess("修改成功");
                this.open = false;
                this.getList();
              });
            } else {
              this.form.menuIds = this.getMenuAllCheckedKeys();
              addRole(this.form).then(response => {
                this.msgSuccess("新增成功");
                this.open = false;
                this.getList();
              });
            }
          }
        });
      },

      /** 删除按钮操作 */
      handleDelete(row) {
        const roleIds = [];
        //选择框删除
        if (typeof row.id === 'undefined'){
          for (let i=0;i<this.ids.length;i++){
            roleIds.push(this.ids[i]);
          }
        }else {
          roleIds.push(row.id);
        }
        this.$confirm('是否确认删除?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return delRole({"ids":roleIds});
        }).then(() => {
          this.getList();
          this.msgSuccess("删除成功");
        })
      },
    }
  };
</script>
